SVENSK STANDARD SS-EN :2004. Provningsmetoder för eldfast tegel Del 19: Bestämning av termisk utvidgning med en differentiell metod

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1 SVENSK STANDARD SS-EN :2004 Fastställd Utgåva 1 Provningsmetoder för eldfast tegel Del 19: Bestämning av termisk utvidgning med en differentiell metod Methods of test for dense shaped refractory products Part 19: Determination of thermal expansion by a differential method ICS Språk: engelska Publicerad: augusti 2004 Copyright SIS. Reproduction in any form without permission is prohibited.

2 Europastandarden EN :2004 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN :2004. The European Standard EN :2004 has the status of a Swedish Standard. This document contains the official English version of EN :2004. Upplysningar om sakinnehållet i standarden lämnas av SIS, Swedish Standards Institute, telefon Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard. Postadress: SIS Förlag AB, STOCKHOLM Telefon: Telefax: E-post: sis.sales@sis.se. Internet:

3 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN May 2004 ICS English version Methods of test for dense shaped refractory products - Part 19: Determination of thermal expansion by a differential method Méthodes d'essai des produits réfractaires denses façonnés - Partie 19: Détermination de la dilatation thermique Prüfverfahren für dichte geformte feuerfeste Erzeugnisse - Teil 19: Bestimmung der Wärmeausdehnung nach einem Differentialverfahren This European Standard was approved by CEN on 24 March CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN :2004: E

4 EN :2004 (E) Provläsningsexemplar / Preview Contents page Foreword Scope Normative references Terms and definitions Principle Apparatus Loading device General Fixed column Moving column Two discs Arrangement of the apparatus Applying the load Furnace Measuring device Temperature measurement devices Callipers Test pieces Procedure Calculation of results Test report...10 Bibliography

5 EN :2004 (E) Foreword This document (EN :2004) has been prepared by Technical Committee CEN/TC 187 Refractory products and materials, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2004, and conflicting national standards shall be withdrawn at the latest by November This document includes a Bibliography. EN 993 with the general title Methods of test for dense shaped refractory products consists of 20 Parts: Part 1: Determination of bulk density, apparent porosity and true porosity Part 2: Determination of true density Part 3: Test methods for carbon-containing refractories Part 4: Determination of permeability to gases Part 5: Determination of cold crushing strength Part 6: Determination of modulus of rupture at ambient temperature Part 7: Determination of modulus of rupture at elevated temperatures Part 8: Determination of refractoriness-under-load Part 9: Determination of creep in compression Part 10: Determination of permanent change in dimensions on heating Part 11: Determination of resistance to thermal shock 1 Part 12: Determination of pyrometric cone equivalent (refractoriness) Part 13: Specification for pyrometric reference cones for laboratory use Part 14: Determination of thermal conductivity by the hot-wire (cross-array) method Part 15: Determination of thermal conductivity by the hot-wire (parallel) method Part 16: Determination of resistance to sulphuric acid Part 17: Determination of bulk density of granular materials by the mercury method with vacuum Part 18: Determination of bulk density of granular materials by the water method with vacuum Part 19: Determination of thermal expansion by a differential method Part 20: Determination of resistance to abrasion at ambient temperature According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 1 Published as a TS with the general title Dense shaped refractory products 3

6 EN :2004 (E) Provläsningsexemplar / Preview 1 Scope This European Standard describes a method for determining the thermal expansion of dense shaped refractory products under rising temperature by a differential method. NOTE The test can be carried out up to a maximum temperature of C. 2 Normative references This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments). EN , Thermocouples Part 1: Reference tables (IEC :1995). EN , Thermocouples Part 2: Tolerances (IEC :1982+A1:1989). ISO 3611, Micrometer callipers for external measurement. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 thermal expansion uniaxial extension which occurs when a material is heated under contact load 3.2 contact load total constant compressive load applied to the test piece during the performance of the test 4 Principle A cylindrical test piece is subjected to a defined compressive contact load and heated in air at a specified uniform rate of temperature increase. Its change in height and temperature are recorded and the percentage change in height is evaluated as a function of temperature. NOTE If the test is applied to material liable to oxidation, the results may be influenced. 5 Apparatus 5.1 Loading device General The loading device shall be capable of applying a load centred on the common axis of the loading column, the test piece and the supporting column, and directed vertically along this axis at all stages of the test. The loading device consists of the items given in to A contact stress of 0,01 MPa is applied in a downward direction from above the test piece resting directly or indirectly on a fixed base. The change in height of the test piece is measured by a device that passes either through the applied load or through an intermediate base. The contact load shall not vary by more than ± 1 N. 4